it's hurts so bad 😩

Judy
Although it was extremely painful when my baby was born I started of mainly breastfeeding but at times had to supplement with formula, my baby is now 4 months and has been mainly on the breast for about 1 month. But it's starting to be as painful as when I started breastfeeding, I didn't know that could happen. My nipples are in so much pain and she just doesn't want the formula anymore. She wants to eat almost every half hour and she also uses my nipple for comfort. Please anyone have any advice on how to ease the pain and how can I start getting her to take the formula? I would like to stop breastfeeding at 6 monthsÂ